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Biological Parameters of the Conical Snail Cochlicella acuta (MÜLLER, 1774) (Gastropoda: Cochlicellidae) under Laboratory Conditions

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Last updated: 04 Jan 2025

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Abstract

Biological parameters like as mating, pre-oviposition, oviposition, post-oviposition, and generation periods as well as growth rate of the pointed or conical snail Cochlicella acuta (Müller, 1774) (Gastropoda: Cochlicellidae)were studied in the Plant Protection Department, Faculty of Agriculture, Zagazig University under laboratory conditions. In 2017/2018,samples of pointed or conical snails of date palm were collected during its reproductive and activity season from highly infested palm tree orchards at Abo-Nagii farm, El-Kassassein, Ismailia governorate. The temperature and RH% values ranged from 19 to 28oC and 48 to 61, respectively. Snails immediately transported back to the laboratory where they were identified to species and kept in 1000 cc boxes "plastic containers" with tight fitting perforated covers , provided with fresh lettuce leaves (Lactuca sativa) as  a source of food reared and ovipostion site. Plastic containers were staked side by side with moist soil. The fresh lettuce leaves were checked daily and replaced with fresh one. The laboratory observations revealed that in spite of this species is hermaphrodite, the cross mating was essential for ovipostion as unmated ones did not lay any egg. Mating occurs when snail individuals reach their sexual maturity as calculated from adulthood until mating. Besides large adults produced more eggs than small ones over the whole breeding season; this period was 95 ± 28.4 days in average. Pre-oviposition period (from mating till laying first egg) lasted for an average of 17.3 ± 6.1 days. Oviposition period (from laying first egg till last one) averaged 84.3 ± 23.6 days during which snail individual deposited a total of 110 ± 59.5 eggs. Post-oviposition period (from last laid egg till mortality) was 140 ± 74.3 days. The generation period (from egg to egg) of this species extended to an average of 275.3 ± 32.1 day

DOI

10.21608/jppp.2019.40582

Keywords

Cochlicella acuta- Sexual maturity – Oviposition – Generation period – Growth rates

Authors

First Name

Olfat

Last Name

Arafa

MiddleName

E.

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Egypt.

Email

dr.agric2013@yahoo.com

City

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Orcid

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First Name

E .

Last Name

Abd El-All

MiddleName

M.

Affiliation

Plant Protection Department, Faculty of Agriculture, Zagazig University, Egypt

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Volume

10

Article Issue

1

Related Issue

6435

Issue Date

2019-01-01

Receive Date

2019-07-11

Publish Date

2019-01-01

Page Start

53

Page End

56

Print ISSN

2090-3677

Online ISSN

2090-3758

Link

https://jppp.journals.ekb.eg/article_40582.html

Detail API

https://jppp.journals.ekb.eg/service?article_code=40582

Order

9

Type

Original Article

Type Code

888

Publication Type

Journal

Publication Title

Journal of Plant Protection and Pathology

Publication Link

https://jppp.journals.ekb.eg/

MainTitle

Biological Parameters of the Conical Snail Cochlicella acuta (MÜLLER, 1774) (Gastropoda: Cochlicellidae) under Laboratory Conditions

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Article

Created At

22 Jan 2023